CN209593274U - The on-pole switch bootstrap power supply of electricity is taken based on capacitor - Google Patents
The on-pole switch bootstrap power supply of electricity is taken based on capacitor Download PDFInfo
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- CN209593274U CN209593274U CN201920792433.3U CN201920792433U CN209593274U CN 209593274 U CN209593274 U CN 209593274U CN 201920792433 U CN201920792433 U CN 201920792433U CN 209593274 U CN209593274 U CN 209593274U
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Abstract
The utility model provides a kind of on-pole switch bootstrap power supply that electricity is taken based on capacitor, including power-supply circuit；The power-supply circuit includes: capacitor C1 and transformer TR1, and one end of capacitor C1 connects voltage high potential HV_H, primary coil one end of the other end connection transformer TR1 of capacitor C1, and the primary coil other end of transformer TR1 connects voltage low potential HV_L.The utility model solves defect existing for existing way to take power in such a way that capacitor takes electricity.
Description
Technical field
The utility model relates to electronic circuits, and in particular, to the on-pole switch bootstrap power supply of electricity is taken based on capacitor.
Background technique
The patent of Publication No. CN 106410804B discloses a kind of complete operation power system of pole-mounted circuit breaker, at present
The power supply mode of traditional pole-mounted circuit breaker includes following several:
Mode one: it is had several drawbacks in that using one or two dry-type voltage inductors (PT), the power supply mode of this PT:
(1) there are problems that second short circuit causes PT to explode when wiring is installed；
(2) quality of PT is bad therefore causes insulation breakdown to lead to line fault due to long-term accumulated in the process of running
The problem of；
(3) the problem of PT bis- times long-term overloads may cause PT thermal breakdown and line fault occur；
(4) single-phase fault may cause the problem of ferromagnetic resonance
(5) for PT since using electromagnetic induction principle, volume is big, installation is inconvenient, therefore reference is restricted very much.
Mode two: current transformer (CT) takes electricity, is exactly to be incuded the primary current on route using electromagnetic induction principle
For low current, then low current is converted into voltage as power supply.This power supply mode haves the shortcomings that output power is unstable, easily
By primary current influence of fluctuations, acquisition power is smaller when primary current is smaller, and route breaks down or has can make when overcurrent
Output power becomes larger suddenly, needs to do a large amount of protection, therefore powering can be unstable.
Mode three: solar energy takes electricity, converts solar energy into electrical energy.Disadvantage:
(1) transformation efficiency is low；
(2) unstable, influenced by weather it is more serious, cloudy day, the rainy day and fine day output power difference it is larger；
(3) service life is short, just needs replacing solar energy reformer plate within general 1 to 2 years；
(4) area occupied is big when installing, and use occasion is limited.
Utility model content
For the defects in the prior art, the purpose of the utility model is to provide a kind of on-pole switch that electricity is taken based on capacitor
Bootstrap power supply.
According to a kind of on-pole switch bootstrap power supply for taking electricity based on capacitor provided by the utility model, including power-supply circuit；
The power-supply circuit includes: capacitor C1 and transformer TR1, and one end of capacitor C1 connects voltage high potential HV_H, electricity
Hold primary coil one end of the other end connection transformer TR1 of C1, the low electricity of primary coil other end connection voltage of transformer TR1
Position HV_L.
It preferably, further include rectification circuit, the rectification circuit includes:
Two input terminals of rectifier bridge BRG, rectifier bridge BRG are separately connected the secondary coil both ends of transformer TR1.
It preferably, further include filter circuit, the filter circuit includes capacitor Cd and capacitor Ca1, capacitor Cd and capacitor Ca1
Both ends be separately connected two output ends VA+, VOUT- of rectifier bridge BRG, the output end VOUT- of rectifier bridge BRG is as the base
The output negative terminal of the on-pole switch bootstrap power supply of electricity is taken in capacitor.
It preferably, further include voltage regulator circuit, the voltage regulator circuit connects the output end of the filter circuit；
The voltage regulator circuit includes voltage regulation type DC-DC module Ud, resistance R1, resistance R2, diode D1 and diode D2, surely
The output end VA+ of the first input end connection rectifier bridge BRG of die mould DC-DC module Ud, the second of voltage regulation type DC-DC module Ud are defeated
Enter end and is connected in parallel on the of voltage regulation type DC-DC module Ud by the output end VOUT- of resistance R2 connection rectifier bridge BRG, diode D1
Between one input terminal and output end VB+, resistance R1 and diode D2 be connected in parallel on the second input terminal of voltage regulation type DC-DC module Ud with
Between output end VB+.
It preferably, further include the first protection circuit, the output of the first protection circuit is separately connected the first of transformer TR1
The input terminal at the both ends of grade coil, the first protection circuit is separately connected the output end VA+ and voltage regulation type of rectifier bridge BRG
The output end VB+ of DC-DC module Ud.
It preferably, further include the second protection circuit, second protection is electrically connected to two output ends of rectifier bridge BRG
Between VA+, VOUT-.
Preferably, the second protection circuit includes: voltage-stabiliser tube Zq, and the cathode connection rectifier bridge BRG's of voltage-stabiliser tube Zq is defeated
The anode of outlet VA+, voltage-stabiliser tube Zq are connected with the one end light emitting diode Lq, grid of the anode of voltage-stabiliser tube Zq also with metal-oxide-semiconductor Q1
It is connected, one end of the other end connection resistance Rq1 of light emitting diode Lq, the output of the other end connection rectifier bridge BRG of resistance Rq1
Hold VOUT-.
It preferably, further include third protection circuit, the third protection is electrically connected to the defeated of voltage regulation type DC-DC module Ud
Outlet VB+, the output of the third protection circuit are taking the output of electric on-pole switch bootstrap power supply just based on capacitor as described
End.
Preferably, third protection circuit includes: diode D3 and fuse FU1, diode D3 and fuse FU1 according to
The secondary output end for being connected on the voltage regulator circuit.
The utility model also provides a kind of on-pole switch bootstrap power supply that electricity is taken based on capacitor, including power-supply circuit, rectification
Circuit, filter circuit, voltage regulator circuit, the first protection circuit, the second protection circuit and third protect circuit；
The power-supply circuit includes: capacitor C1 and transformer TR1, and one end of capacitor C1 connects voltage high potential HV_H, electricity
Hold primary coil one end of the other end connection transformer TR1 of C1, the low electricity of primary coil other end connection voltage of transformer TR1
Position HV_L；
The rectification circuit includes: rectifier bridge BRG, and two input terminals of rectifier bridge BRG are separately connected time of transformer TR1
Grade coil both ends；
The filter circuit includes capacitor Cd and capacitor Ca1, and the both ends of capacitor Cd and capacitor Ca1 are separately connected rectifier bridge
The output end VOUT- of two output ends VA+, VOUT- of BRG, rectifier bridge BRG are as the on-pole switch for taking electricity based on capacitor
The output negative terminal of bootstrap power supply；
The voltage regulator circuit connects the output end of the filter circuit；The voltage regulator circuit includes voltage regulation type DC-DC module
The first input end of Ud, resistance R1, resistance R2, diode D1 and diode D2, voltage regulation type DC-DC module Ud connect rectifier bridge
The second input terminal of the output end VA+ of BRG, voltage regulation type DC-DC module Ud pass through the output end of resistance R2 connection rectifier bridge BRG
VOUT-, diode D1 are connected in parallel between the first input end and output end VB+ of voltage regulation type DC-DC module Ud, resistance R1 and two poles
Pipe D2 is connected in parallel between the second input terminal and output end VB+ of voltage regulation type DC-DC module Ud；
The output of the first protection circuit is separately connected the both ends of the primary coil of transformer TR1, first protection
The input terminal of circuit is separately connected the output end VB+ of the output end VA+ and voltage regulation type DC-DC module Ud of rectifier bridge BRG；
Second protection is electrically connected between two output ends VA+, VOUT- of rectifier bridge BRG；Second protection
Circuit includes: voltage-stabiliser tube Zq, the output end VA+ of the cathode connection rectifier bridge BRG of voltage-stabiliser tube Zq, the anode of voltage-stabiliser tube Zq with it is luminous
The one end diode Lq is connected, and the anode of voltage-stabiliser tube Zq is also connected with the grid of metal-oxide-semiconductor Q1, the other end connection of light emitting diode Lq
One end of resistance Rq1, the output end VOUT- of the other end connection rectifier bridge BRG of resistance Rq1；
The third protection is electrically connected to the output end VB+ of voltage regulation type DC-DC module Ud, the third protection circuit
Export the output plus terminal as the on-pole switch bootstrap power supply for taking electricity based on capacitor；The third protection circuit includes: two
Pole pipe D3 and fuse FU1, diode D3 and fuse FU1 are sequentially connected in series the output end in the voltage regulator circuit.
Compared with prior art, the utility model have it is following the utility model has the advantages that
1, in such a way that capacitor takes electricity, defect existing for existing way to take power is solved；
It 2, can be by the direct integrated casting of capacitor inside insulating polar pole, without additionally being installed；
3, power supply line, which is directly put, switchs again inside the cable of controller, without additional configuration feed cable
Line, while saving cost, so that installation is also more convenient；
4, alternating voltage is directly converted into DC voltage, protection circuit is simpler compared with the prior art.
Detailed description of the invention
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other spies of the utility model
Sign, objects and advantages will become more apparent upon:
Fig. 1 is the part circuit structure schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram that the utility model first protects circuit；
Fig. 3 is the structural schematic diagram that the utility model second protects circuit.
Specific embodiment
The utility model is described in detail combined with specific embodiments below.Following embodiment will be helpful to this field
Technical staff further understands the utility model, but does not limit the utility model in any form.It should be pointed out that ability
For the those of ordinary skill in domain, without departing from the concept of the premise utility, several changes and improvements can also be made.
These are all within the protection scope of the present invention.
As shown in Figure 1 to Figure 3, a kind of on-pole switch bootstrap power supply taking electricity based on capacitor provided in this embodiment, including
Power-supply circuit 1, rectification circuit 3, filter circuit 4, voltage regulator circuit 6, first protect circuit 2, second to protect circuit 5 and third protection
Circuit 7.
Power-supply circuit includes: capacitor C1 and transformer TR1, and one end of capacitor C1 connects voltage high potential HV_H, capacitor C1
Other end connection transformer TR1 primary coil one end, the primary coil other end of transformer TR1 connects voltage low potential
HV_L。
Rectification circuit includes: rectifier bridge BRG, and two input terminals of rectifier bridge BRG are separately connected the secondary wire of transformer TR1
Enclose both ends.The ac voltage rectifier that transformer TR1 is exported is at DC voltage.
Filter circuit includes capacitor Cd and capacitor Ca1, and the both ends of capacitor Cd and capacitor Ca1 are separately connected rectifier bridge BRG's
Two output ends VA+, VOUT-, the output end VOUT- of rectifier bridge BRG is as the on-pole switch bootstrap power supply for taking electricity based on capacitor
Output negative terminal.High frequency low-frequency disturbance and ripple present in voltage after over commutation are filtered out.
The output end of voltage regulator circuit connection filter circuit；Voltage regulator circuit includes voltage regulation type DC-DC module Ud, resistance R1, electricity
Hinder the output end VA of the first input end connection rectifier bridge BRG of R2, diode D1 and diode D2, voltage regulation type DC-DC module Ud
+, the second input terminal of voltage regulation type DC-DC module Ud passes through the output end VOUT-, diode D1 of resistance R2 connection rectifier bridge BRG
It is connected in parallel between the first input end and output end VB+ of voltage regulation type DC-DC module Ud, resistance R1 and diode D2 are connected in parallel on pressure stabilizing
Between the second input terminal and output end VB+ of type DC-DC module Ud.Constant electricity is exported when input is kept in a certain range
Pressure value.
The output of first protection circuit is separately connected the both ends of the primary coil of transformer TR1, and first protects the defeated of circuit
Enter the output end VB+ that end is separately connected the output end VA+ and voltage regulation type DC-DC module Ud of rectifier bridge BRG.According to VA+ and VB+
Voltage transformer input side A and B are protected to compare, when the overtension of VA+ connect U2 output end T2 and
G2, the input to limiting transformer primary coil A and B.
Second protection is electrically connected between two output ends VA+, VOUT- of rectifier bridge BRG；Second protection circuit packet
It includes: the output end VA+ of the cathode connection rectifier bridge BRG of voltage-stabiliser tube Zq, voltage-stabiliser tube Zq, the anode and light emitting diode of voltage-stabiliser tube Zq
The one end Lq is connected, and the anode of voltage-stabiliser tube Zq is also connected with the grid of metal-oxide-semiconductor Q1, and the other end of light emitting diode Lq connects resistance
One end of Rq1, the output end VOUT- of the other end connection rectifier bridge BRG of resistance Rq1.When the voltage mistake between VA+ and Vout-
Gao Shi connects source electrode and the drain electrode of metal-oxide-semiconductor Q1, so that the voltage of VA+ and VOUT- is directly applied on resistance Rq2, to reach
It prevents from exporting to the effect of 6 overtension of voltage regulation unit.
Third protects the output end VB+ for being electrically connected to voltage regulation type DC-DC module Ud, and third protects the output conduct of circuit
The output plus terminal of the on-pole switch bootstrap power supply of electricity is taken based on capacitor；It includes: diode D3 and fuse that third, which protects circuit,
FU1, diode D3 and fuse FU1 are sequentially connected in series the output end in voltage regulator circuit.FU1 fuses when load current is excessive, to negative
FU1 after electric current reduces is carried voluntarily to restore；D3 is to prevent external voltage is counter from pouring into this bootstrap power supply using the characteristic of diode.
Specific embodiment of the utility model is described above.It is to be appreciated that the utility model not office
It is limited to above-mentioned particular implementation, those skilled in the art can make a variety of changes or modify within the scope of the claims,
This has no effect on the substantive content of the utility model.In the absence of conflict, the spy in embodiments herein and embodiment
Sign can be arbitrarily combined with each other.
Claims (10)
1. a kind of on-pole switch bootstrap power supply for taking electricity based on capacitor, which is characterized in that including power-supply circuit；
The power-supply circuit includes: capacitor C1 and transformer TR1, and one end of capacitor C1 connects voltage high potential HV_H, capacitor C1
Other end connection transformer TR1 primary coil one end, the primary coil other end of transformer TR1 connects voltage low potential
HV_L。
2. the on-pole switch bootstrap power supply according to claim 1 for taking electricity based on capacitor, which is characterized in that further include rectification
Circuit, the rectification circuit include:
Two input terminals of rectifier bridge BRG, rectifier bridge BRG are separately connected the secondary coil both ends of transformer TR1.
3. the on-pole switch bootstrap power supply according to claim 2 for taking electricity based on capacitor, which is characterized in that further include filtering
Circuit, the filter circuit include capacitor Cd and capacitor Ca1, and the both ends of capacitor Cd and capacitor Ca1 are separately connected rectifier bridge BRG's
Two output ends VA+, VOUT-, the output end VOUT- of rectifier bridge BRG is as the on-pole switch bootstrapping for taking electricity based on capacitor
The output negative terminal of power supply.
4. the on-pole switch bootstrap power supply according to claim 3 for taking electricity based on capacitor, which is characterized in that further include pressure stabilizing
Circuit, the voltage regulator circuit connect the output end of the filter circuit；
The voltage regulator circuit includes voltage regulation type DC-DC module Ud, resistance R1, resistance R2, diode D1 and diode D2, voltage regulation type
The output end VA+ of the first input end connection rectifier bridge BRG of DC-DC module Ud, the second input terminal of voltage regulation type DC-DC module Ud
By the output end VOUT- of resistance R2 connection rectifier bridge BRG, diode D1 be connected in parallel on voltage regulation type DC-DC module Ud it is first defeated
Enter between end and output end VB+, resistance R1 and diode D2 are connected in parallel on the second input terminal of voltage regulation type DC-DC module Ud and export
It holds between VB+.
5. the on-pole switch bootstrap power supply according to claim 4 for taking electricity based on capacitor, which is characterized in that further include first
Circuit is protected, the output of the first protection circuit is separately connected the both ends of the primary coil of transformer TR1, first protection
The input terminal of circuit is separately connected the output end VB+ of the output end VA+ and voltage regulation type DC-DC module Ud of rectifier bridge BRG.
6. the on-pole switch bootstrap power supply according to claim 4 for taking electricity based on capacitor, which is characterized in that further include second
Circuit is protected, second protection is electrically connected between two output ends VA+, VOUT- of rectifier bridge BRG.
7. the on-pole switch bootstrap power supply according to claim 6 for taking electricity based on capacitor, which is characterized in that described second protects
Protection circuit includes: voltage-stabiliser tube Zq, the output end VA+ of the cathode connection rectifier bridge BRG of voltage-stabiliser tube Zq, anode and the hair of voltage-stabiliser tube Zq
The one end optical diode Lq is connected, and the anode of voltage-stabiliser tube Zq is also connected with the grid of metal-oxide-semiconductor Q1, and the other end of light emitting diode Lq connects
One end of connecting resistance Rq1, the output end VOUT- of the other end connection rectifier bridge BRG of resistance Rq1.
8. the on-pole switch bootstrap power supply according to claim 4 for taking electricity based on capacitor, which is characterized in that further include third
Circuit is protected, the third protection is electrically connected to the output end VB+ of voltage regulation type DC-DC module Ud, and the third protects circuit
Output as the output plus terminal for taking electric on-pole switch bootstrap power supply based on capacitor.
9. the on-pole switch bootstrap power supply according to claim 8 for taking electricity based on capacitor, which is characterized in that the third is protected
Protection circuit includes: diode D3 and fuse FU1, and diode D3 and fuse FU1 are sequentially connected in series in the defeated of the voltage regulator circuit
Outlet.
10. a kind of on-pole switch bootstrap power supply for taking electricity based on capacitor, which is characterized in that including power-supply circuit, rectification circuit, filter
Wave circuit, voltage regulator circuit, the first protection circuit, the second protection circuit and third protect circuit；
The power-supply circuit includes: capacitor C1 and transformer TR1, and one end of capacitor C1 connects voltage high potential HV_H, capacitor C1
Other end connection transformer TR1 primary coil one end, the primary coil other end of transformer TR1 connects voltage low potential
HV_L；
The rectification circuit includes: rectifier bridge BRG, and two input terminals of rectifier bridge BRG are separately connected the secondary wire of transformer TR1
Enclose both ends；
The filter circuit includes capacitor Cd and capacitor Ca1, and the both ends of capacitor Cd and capacitor Ca1 are separately connected rectifier bridge BRG's
Two output ends VA+, VOUT-, the output end VOUT- of rectifier bridge BRG is as the on-pole switch bootstrapping for taking electricity based on capacitor
The output negative terminal of power supply；
The voltage regulator circuit connects the output end of the filter circuit；The voltage regulator circuit includes voltage regulation type DC-DC module Ud, electricity
Hinder the defeated of the first input end connection rectifier bridge BRG of R1, resistance R2, diode D1 and diode D2, voltage regulation type DC-DC module Ud
The second input terminal of outlet VA+, voltage regulation type DC-DC module Ud are by the output end VOUT- of resistance R2 connection rectifier bridge BRG, and two
Pole pipe D1 is connected in parallel between the first input end and output end VB+ of voltage regulation type DC-DC module Ud, and resistance R1 and diode D2 are in parallel
Between the second input terminal and output end VB+ of voltage regulation type DC-DC module Ud；
The output of the first protection circuit is separately connected the both ends of the primary coil of transformer TR1, the first protection circuit
Input terminal be separately connected rectifier bridge BRG output end VA+ and voltage regulation type DC-DC module Ud output end VB+；
Second protection is electrically connected between two output ends VA+, VOUT- of rectifier bridge BRG；The second protection circuit
It include: voltage-stabiliser tube Zq, the output end VA+ of the cathode connection rectifier bridge BRG of voltage-stabiliser tube Zq, the anode and light-emitting diodes of voltage-stabiliser tube Zq
The one end pipe Lq is connected, and the anode of voltage-stabiliser tube Zq is also connected with the grid of metal-oxide-semiconductor Q1, and the other end of light emitting diode Lq connects resistance
One end of Rq1, the output end VOUT- of the other end connection rectifier bridge BRG of resistance Rq1；
The third protection is electrically connected to the output end VB+ of voltage regulation type DC-DC module Ud, the output of the third protection circuit
Output plus terminal as the on-pole switch bootstrap power supply for taking electricity based on capacitor；Third protection circuit includes:
Diode D3 and fuse FU1, diode D3 and fuse FU1 are sequentially connected in series the output end in the voltage regulator circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920792433.3U CN209593274U (en) | 2019-05-29 | 2019-05-29 | The on-pole switch bootstrap power supply of electricity is taken based on capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920792433.3U CN209593274U (en) | 2019-05-29 | 2019-05-29 | The on-pole switch bootstrap power supply of electricity is taken based on capacitor |
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| Publication Number | Publication Date |
|---|---|
| CN209593274U true CN209593274U (en) | 2019-11-05 |
Family
ID=68345600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920792433.3U Active CN209593274U (en) | 2019-05-29 | 2019-05-29 | The on-pole switch bootstrap power supply of electricity is taken based on capacitor |
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|---|---|
| CN (1) | CN209593274U (en) |
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2019
- 2019-05-29 CN CN201920792433.3U patent/CN209593274U/en active Active
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